Validation of sea ice concentration
Bulletin date: 2019-09-05
Model vs. observations, sea ice class contingency tables
Date: 2019-08-30:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24294 |
4813 |
1173 |
553 |
133 |
50 |
2 |
0 |
| OW |
0 |
15 |
123 |
292 |
157 |
44 |
3 |
0 |
| VODI |
0 |
5 |
62 |
144 |
194 |
133 |
50 |
0 |
| ODI |
0 |
0 |
13 |
52 |
118 |
238 |
276 |
0 |
| CDI |
0 |
0 |
1 |
7 |
36 |
158 |
2167 |
979 |
| VCDI |
0 |
0 |
0 |
1 |
0 |
10 |
701 |
1162 |
|
...date precedes bulletin
|
Date: 2019-09-03:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24553 |
5114 |
1203 |
521 |
129 |
14 |
2 |
0 |
| OW |
0 |
37 |
119 |
158 |
58 |
7 |
4 |
0 |
| VODI |
0 |
3 |
57 |
124 |
125 |
52 |
23 |
0 |
| ODI |
0 |
0 |
7 |
47 |
96 |
144 |
229 |
0 |
| CDI |
0 |
0 |
1 |
18 |
78 |
81 |
1851 |
994 |
| VCDI |
0 |
0 |
0 |
3 |
2 |
38 |
1082 |
1185 |
|
...date precedes bulletin
|
Date: 2019-09-05:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24583 |
4984 |
1214 |
467 |
139 |
24 |
2 |
0 |
| OW |
0 |
16 |
137 |
160 |
46 |
12 |
7 |
0 |
| VODI |
0 |
0 |
58 |
134 |
123 |
44 |
30 |
0 |
| ODI |
0 |
0 |
7 |
37 |
131 |
140 |
132 |
0 |
| CDI |
0 |
0 |
0 |
20 |
48 |
96 |
1756 |
850 |
| VCDI |
0 |
0 |
0 |
2 |
32 |
39 |
1277 |
1412 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24583 |
4989 |
1266 |
522 |
146 |
25 |
4 |
0 |
| OW |
0 |
11 |
92 |
131 |
52 |
17 |
10 |
0 |
| VODI |
0 |
0 |
52 |
114 |
123 |
52 |
28 |
0 |
| ODI |
0 |
0 |
6 |
37 |
123 |
144 |
164 |
0 |
| CDI |
0 |
0 |
0 |
14 |
44 |
79 |
1737 |
803 |
| VCDI |
0 |
0 |
0 |
2 |
31 |
38 |
1261 |
1459 |
|
Date: 2019-09-09:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24347 |
4684 |
1452 |
391 |
171 |
12 |
0 |
0 |
| OW |
0 |
0 |
103 |
113 |
67 |
24 |
3 |
0 |
| VODI |
0 |
0 |
25 |
109 |
129 |
62 |
30 |
0 |
| ODI |
0 |
0 |
3 |
44 |
164 |
160 |
86 |
0 |
| CDI |
0 |
0 |
1 |
5 |
44 |
111 |
1796 |
664 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
3 |
687 |
2662 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24347 |
4684 |
1474 |
460 |
219 |
23 |
2 |
0 |
| OW |
0 |
0 |
89 |
103 |
96 |
46 |
11 |
0 |
| VODI |
0 |
0 |
17 |
64 |
140 |
85 |
58 |
0 |
| ODI |
0 |
0 |
3 |
24 |
76 |
136 |
159 |
0 |
| CDI |
0 |
0 |
1 |
11 |
44 |
79 |
1460 |
49 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
3 |
912 |
3277 |
|
Date: 2019-09-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24313 |
4798 |
1305 |
427 |
200 |
26 |
0 |
0 |
| OW |
0 |
0 |
128 |
104 |
79 |
40 |
4 |
0 |
| VODI |
0 |
0 |
43 |
75 |
113 |
127 |
28 |
0 |
| ODI |
0 |
0 |
7 |
18 |
76 |
167 |
105 |
0 |
| CDI |
0 |
0 |
1 |
4 |
31 |
140 |
1529 |
411 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
12 |
874 |
2964 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24313 |
4797 |
1331 |
471 |
241 |
43 |
1 |
0 |
| OW |
0 |
1 |
94 |
79 |
73 |
80 |
14 |
0 |
| VODI |
0 |
0 |
48 |
58 |
106 |
118 |
77 |
0 |
| ODI |
0 |
0 |
9 |
11 |
48 |
137 |
164 |
0 |
| CDI |
0 |
0 |
2 |
9 |
33 |
121 |
1176 |
41 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
13 |
1108 |
3334 |
|
Date: 2019-09-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24807 |
4772 |
1021 |
456 |
80 |
8 |
2 |
0 |
| OW |
0 |
20 |
150 |
155 |
48 |
13 |
6 |
0 |
| VODI |
0 |
6 |
62 |
128 |
128 |
68 |
21 |
0 |
| ODI |
0 |
0 |
13 |
42 |
99 |
109 |
109 |
0 |
| CDI |
0 |
0 |
1 |
19 |
98 |
91 |
1290 |
167 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
4 |
1483 |
2677 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24807 |
4767 |
1004 |
500 |
92 |
9 |
1 |
0 |
| OW |
0 |
21 |
120 |
126 |
59 |
18 |
7 |
0 |
| VODI |
0 |
8 |
101 |
111 |
121 |
81 |
42 |
0 |
| ODI |
0 |
2 |
16 |
40 |
86 |
101 |
120 |
0 |
| CDI |
0 |
0 |
6 |
23 |
92 |
75 |
1069 |
10 |
| VCDI |
0 |
0 |
0 |
1 |
8 |
9 |
1672 |
2834 |
|
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